Merge branch 'master' of git://git.ucc.asn.au/tpg/acess2

[tpg/acess2.git] / Usermode / Applications / axwin4_src / Server / video.cpp

diff --git a/Usermode/Applications/axwin4_src/Server/video.cpp b/Usermode/Applications/axwin4_src/Server/video.cpp
new file mode 100644 (file)
index 0000000..50686c6
--- /dev/null
+++ b/Usermode/Applications/axwin4_src/Server/video.cpp
@@ -0,0 +1,120 @@
+/*
+ * Acess2 GUI v4
+ * - By John Hodge (thePowersGang)
+ *
+ * video.cpp
+ * - Graphics output
+ */
+#include <cstddef>
+#include <video.hpp>
+#include <common.hpp>
+
+extern "C" {
+#include <acess/sys.h>
+#include <acess/devices/pty.h>
+#include <acess/devices/pty_cmds.h>
+#include "resources/cursor.h"
+}
+
+namespace AxWin {
+
+CVideo::CVideo(const CConfigVideo& config):
+       m_fd(1),
+       m_width(0),
+       m_height(0),
+       m_bufferFormat(PTYBUFFMT_TEXT)
+{
+       // Obtain dimensions
+       {
+               if( _SysIOCtl(m_fd, DRV_IOCTL_TYPE, NULL) != DRV_TYPE_TERMINAL )
+                       throw AxWin::InitFailure("stdin isn't a terminal");
+               struct ptydims  dims;
+               if( _SysIOCtl(m_fd, PTY_IOCTL_GETDIMS, &dims) == -1 )
+                       throw AxWin::InitFailure("Failed to get dimensions from stdin");
+               m_width = dims.PW;
+               m_height = dims.PH;
+               if( m_width == 0 || m_height == 0 )
+                       throw AxWin::InitFailure("Terminal not capable of graphics");
+       }
+       
+       _SysDebug("m_width=%i, m_height=%i", m_width, m_height);
+       SetCursorBitmap();
+       
+       SetCursorPos( m_width/2, m_height/2 );
+       
+       SetBufFormat(PTYBUFFMT_FB);
+       uint32_t        data[m_width];
+       for( unsigned int i = 0; i < m_height; i ++ )
+               BlitLine(data, i, 0, m_width);
+}
+
+void CVideo::GetDims(unsigned int& w, unsigned int& h)
+{
+       w = m_width;
+       h = m_height;
+}
+
+void CVideo::BlitLine(const uint32_t* src, unsigned int dst_y, unsigned int dst_x, unsigned int width)
+{
+       //_SysDebug("CVideo::BlitLine (%p, %i, %i, %i)", src, dst_y, dst_x, width);
+       //_SysDebugHex("CVideo::BlitLine", src, width*4);
+       size_t  cmdlen = (sizeof(struct ptycmd_senddata) + width*4)/4;
+       //_SysDebug(" - Offset = %i, cmdlen = %i", (dst_y * m_width + dst_x) * 4, cmdlen);
+       struct ptycmd_senddata  cmd = {
+               {PTY2D_CMD_SEND, uint8_t(cmdlen & 0xFF), uint16_t(cmdlen>>8)},
+               (dst_y * m_width + dst_x)
+       };
+       SetBufFormat(PTYBUFFMT_2DCMD);
+       _SysWrite(m_fd, &cmd, sizeof(cmd));
+       _SysWrite(m_fd, src, width*4);
+}
+
+void CVideo::Flush()
+{
+       // TODO: Write to a local copy of the framebuffer in BlitLine, and then flush out in this function
+}
+
+void CVideo::SetBufFormat(unsigned int FormatID)
+{
+       if( m_bufferFormat != FormatID )
+       {
+               
+               struct ptymode mode = {.OutputMode = FormatID, .InputMode = 0};
+               int rv = _SysIOCtl( m_fd, PTY_IOCTL_SETMODE, &mode );
+               if( rv ) {
+                       throw ::AxWin::InitFailure("Can't set PTY to framebuffer mode");
+               }
+               
+               m_bufferFormat = FormatID;
+       }
+}
+
+void CVideo::SetCursorBitmap()
+{
+       // Set cursor position and bitmap
+       struct ptycmd_header    hdr = {PTY2D_CMD_SETCURSORBMP,0,0};
+       size_t size = sizeof(hdr) + sizeof(cCursorBitmap) + cCursorBitmap.W*cCursorBitmap.H*4;
+       hdr.len_low = size / 4;
+       hdr.len_hi = size / (256*4);
+       
+       SetBufFormat(PTYBUFFMT_2DCMD);
+       _SysWrite(m_fd, &hdr, sizeof(hdr));
+       _SysDebug("SetCursorBitmap - size = %i (%04x:%02x * 4)", size, hdr.len_hi, hdr.len_low);
+       _SysWrite(m_fd, &cCursorBitmap, size-sizeof(hdr));
+}
+
+void CVideo::SetCursorPos(int X, int Y)
+{
+       struct ptycmd_setcursorpos      cmd;
+       cmd.hdr.cmd = PTY2D_CMD_SETCURSORPOS;
+       cmd.hdr.len_low = sizeof(cmd)/4;
+       cmd.hdr.len_hi = 0;
+       cmd.x = X;
+       cmd.y = Y;
+
+       SetBufFormat(PTYBUFFMT_2DCMD);  
+       _SysWrite(m_fd, &cmd, sizeof(cmd));
+}
+
+};     // namespace AxWin
+